. >> bvirown: , president obama met with the family of krystle campbell, one of three killed. and in addressing the gathering, he sought to comrt the unnerved city. >> after all, it's our beloved city, too, boston may be your home town but we claim it, too. your resolve is the greatest rebuke to whoever committed this heinous act, if they sought to intimidate us, to terrorize us, to shake us from those values the values that make us who we are as americans. well it should be pretty clear by now that they picked the wrong city to do it. ( applause ) not here in boston, not here in boston. and that's what you've taught us boston, that's what you reminded us, to push on, to persevere, to not grow weary, to not get faint. even when it hurts, even when our heart aches, we summon the strength that maybe we didn'tev. >> brown: later, mr. obama spoke with members of the boston athletic association at a nearby high school and visited with victims and staff at massachusetts general hospital. >> suarez: and we turn now to the subject of drones-- small unmanned aerial devices outfitted wi